The Solid Earth - Chapter 3: Drainage Systems and Patterns Flashcards
Each system that contains a stream consists of a ___ ____, the land area that contributes water to the stream
drainage basin
The imaginary line that separates the drainage basin of one stream from another
divide
This is a term for divides that split continents into enormous drainage basins
continental divide
The most commonly encouraged drainage pattern
dendritic
This pattern is characterized by an irregular branching of tributary streams that resembles the branching pattern of a deciduous tree
dendritic
The dendritic pattern forms where the underlying material is relatively ____
uniform
When streams diverge from a central area like spokes from the hub of a wheel, the pattern is
radial
This pattern typically develops on isolated volcanic cones and domal uplifts
radial
A ____ pattern has many right angle bends and develops when the bedrock is crisscrossed by joints and/or faults
Rectangular
These structures in this pattern are eroded more easily than unbroken rock, so their geometric pattern guides the direction of valleys
Rectangular pattern
A ____ drainage pattern is a rectangular pattern in which tributary streams are nearly parallel to one another and have the appearance of a garden trellis
trellis
This pattern forms in areas underlain by alternating bands of resistant and less resistant rock is particularly well displayed in the folded Appalachians where both weak and strong strata outcrop in nearly parallel belts
Trellis